Methods The patients with nephrotic syndrome(NS) were measured for their plasma levels of tissue type plasminogen activitor(t PA) by chromogenic substrate method and ELISA before and after using LMWH.

• 方法用底物显色法和ELISA法测定肾病综合征(NS)患者应用LMWH前后血浆组织型纤溶酶原激活剂(t-PA)与D-二聚体(D-D)的水平。